From: keith.busch@linux.intel.com (Keith Busch)
Subject: [PATCH 1/2] nvme: pci: simplify timeout handling
Date: Thu, 10 May 2018 15:44:41 -0600 [thread overview]
Message-ID: <20180510214441.GD4787@localhost.localdomain> (raw)
In-Reply-To: <20180510212444.GC3515@ming.t460p>
On Fri, May 11, 2018@05:24:46AM +0800, Ming Lei wrote:
> Could you share me the link?
The diff was in this reply here:
http://lists.infradead.org/pipermail/linux-nvme/2018-April/017019.html
> Firstly, the previous nvme_sync_queues() won't work reliably, so this
> patch introduces blk_unquiesce_timeout() and blk_quiesce_timeout() for
> this purpose.
>
> Secondly, I remembered that you only call nvme_sync_queues() at the
> entry of nvme_reset_work(), but timeout(either admin or normal IO)
> can happen again during resetting, that is another race addressed by
> this patchset, but can't cover by your proposal.
I sync the queues at the beginning because it ensures there is not
a single in flight request for the entire controller (all namespaces
plus admin queue) before transitioning to the connecting state.
If a command times out during connecting state, we go to the dead state.
next prev parent reply other threads:[~2018-05-10 21:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-26 12:39 [PATCH 0/2] nvme: pci: fix & improve timeout handling Ming Lei
2018-04-26 12:39 ` [PATCH 1/2] nvme: pci: simplify " Ming Lei
2018-04-26 15:07 ` jianchao.wang
2018-04-26 15:57 ` Ming Lei
2018-04-26 16:16 ` Ming Lei
2018-04-27 1:37 ` jianchao.wang
2018-04-27 14:57 ` Ming Lei
2018-04-28 14:00 ` jianchao.wang
2018-04-28 21:57 ` Ming Lei
2018-04-28 22:27 ` Ming Lei
2018-04-29 1:36 ` Ming Lei
2018-04-29 2:21 ` jianchao.wang
2018-04-29 14:13 ` Ming Lei
2018-04-27 17:51 ` Keith Busch
2018-04-28 3:50 ` Ming Lei
2018-04-28 13:35 ` Keith Busch
2018-04-28 14:31 ` jianchao.wang
2018-04-28 21:39 ` Ming Lei
2018-04-30 19:52 ` Keith Busch
2018-04-30 23:14 ` Ming Lei
2018-05-08 15:30 ` Keith Busch
2018-05-10 20:52 ` Ming Lei
2018-05-10 21:05 ` Keith Busch
2018-05-10 21:10 ` Ming Lei
2018-05-10 21:18 ` Keith Busch
2018-05-10 21:24 ` Ming Lei
2018-05-10 21:44 ` Keith Busch [this message]
2018-05-10 21:50 ` Ming Lei
2018-05-10 21:53 ` Ming Lei
2018-05-10 22:03 ` Ming Lei
2018-05-10 22:43 ` Keith Busch
2018-05-11 0:14 ` Ming Lei
2018-05-11 2:10 ` Ming Lei
2018-04-26 12:39 ` [PATCH 2/2] nvme: pci: guarantee EH can make progress Ming Lei
2018-04-26 16:24 ` Keith Busch
2018-04-28 3:28 ` Ming Lei
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180510214441.GD4787@localhost.localdomain \
--to=keith.busch@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).